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Showing 1 to 20 of 110 for “"fused silica"”.
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Electrokinetic separations in fused silica capillaries
Methods of co-optimizing resolution and detection in Capillary Zone Electrophoresis (CZE) and Micellar Electrokinetic Chromatography (MEKC) are examined by deriving mathematical expressions which illustrate the relative importance of various experimental parameters. For CZE, expressions are derived …
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ANALYTICAL APPLICATIONS OF SURFACE-MODIFIED FUSED SILICA CAPILLARIES
<p>Fused silica capillaries have become a major tool for many applications in analytical chemistry. These capillaries are physically robust, permit gasses or solutions to be introduced and pumped through with relative ease, and due to their small dimensions allow fast mass transfer to and from the …
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ANALYTICAL APPLICATIONS OF SURFACE-MODIFIED FUSED SILICA CAPILLARIES
<p>Fused silica capillaries have become a major tool for many applications in analytical chemistry. These capillaries are physically robust, permit gasses or solutions to be introduced and pumped through with relative ease, and due to their small dimensions allow fast mass transfer to and from the …
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Microfabricated fused silica flow chambers for flow cytometry
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Low-Frequency Light Scattering in Fused Silica and Rubidium-Silver-Iodide
Made available in DSpace on 2015-05-13T15:22:13Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7820931.PDF: 4330295 bytes, checksum: b2a95666305c88dd893aa3cda1153e95 (MD5) Previous issue date: 1978
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Time and temperature dependence of stimulated brillouin scattering in fused silica
… phonon lifetime (Tp) have been investigated. Fused silica was selected as the principal material to be studied because of its optical and acoustic isotropy and its availability in large, optical quality samples. Also, it has the advantage of a distinct dependence of acoustic attenuation on …
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Low frequency light scattering in fused silica and rubidium silver iodide
… electrolyte, rubidium silver iodide. In fused silica the Raman spectra from 2K to 600K are independent of frequency shift from 4 to 10 cm-I• The scattering is attributed to the relaxation by thermal activation at high temperatures of the excess low frequency two-level states that are …
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Fabrication and Characterization of Superconducting Core Fibers with Fused Silica Cladding
… of the superconductor core fibers with a fused silica cladding via the melt-draw approach, as well as develop appropriate characterization techniques to describe the fibers produced. In addition, a further objective was to determine the cooling efficiency of ordered holes around a …
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An integrative approach to process parameter selection in fused-silica capillary manufacturing
Thesis (M.S.)--Massachusetts Institute of Technology, Sloan School of Management, 1992 and Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1992.
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Pressure-driven and electroosmotically-driven liquid chromatographic separations in packed fused silica capillaries
… of the IC system is described, in which 530μm ID fused silica tubing is utilized for column manufacture. In this case, a suppressor column is not used and UV detection is employed in the analysis of nucleoside monophosphates. Again, column performance characteristics are measured and noted. …
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Characterisation of mechanical loss in fused silica ribbons for use in gravitational wave detector suspensions
… characterisation of the mechanical losses in fused silica ribbon fibres to determine their potential for use in suspending the 40kg test masses for Advanced LIGO. The design of fibres is discussed here, demonstrating the advantages of rectangular cross sections over the circular cross sections …
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The Effect of Surface Processing Methods on the Laser Induced Damage Threshold of Fused Silica
… (HiPER), include a large amount of optics. Fused silica glass is one of the most common optical materials which is used in these high peak power laser systems owing to its excellent optical properties, especially for the 355nm ultraviolet laser. However, it is generally found that fused …
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Deactivation and preparation of fused silica open tubular columns for gas and supercritical fluid chromatography
The activity and wettability of raw fused silica capillary tubing was found to be widely variable which places severe limitations on the reproducibility of column deactivation and inertness. Hydrothermal treatment of the raw fused silica with nitric acid was proven to be very effective for cleaning …
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Irradiation studies of fused silica materials and machine learning techniques for ATLAS forward detectors in heavy ion collisions
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2024-12-01
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Analysis of the single scatter albedo and imaginary index of refraction of fused silica nanospheres via a photoacoustic technique and a novel aerosol generator
… (SSA) and imaginary index of refraction of 300nm fused silica spheres using the in-situ technique of photoacoustic spectroscopy. Through the use of a novel aerosol generator, sample aerosol streams were generated and sampled via a 4 wavelength photoacoustic spectrometer system. The measured SSA …
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Fiber Optic Pressure Sensor Fabrication Using MEMS Technology
… is based on intermediate-layer bonding of a fused silica ferrule to a patterned, micro-machined fused silica diaphragm, providing low temperature fabrication of optical pressure sensor heads that can operate at high temperature. Fused silica ferrules and fused silica diaphragms are chosen to …
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Subwavelength antireflection and polarization grating elements: Analysis and fabrication
… period transmission gratings are fabricated in fused silica. A rigorous vector diffraction code, based on the coupled-wave analysis technique, is used to design and analyze the surface relief gratings. When light with wavelength greater than the grating period encounters such element, only …
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